From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.30) id 1B3koH-0006A1-T8 for qemu-devel@nongnu.org; Wed, 17 Mar 2004 18:50:53 -0500 Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.30) id 1B3knJ-0004uu-AF for qemu-devel@nongnu.org; Wed, 17 Mar 2004 18:50:25 -0500 Received: from [193.252.22.21] (helo=mwinf1001.wanadoo.fr) by monty-python.gnu.org with esmtp (Exim 4.30) id 1B3kmx-0004Wn-8h for qemu-devel@nongnu.org; Wed, 17 Mar 2004 18:49:31 -0500 Received: from bellard.org (ATuileries-112-1-3-137.w81-48.abo.wanadoo.fr [81.48.134.137]) by mwinf1001.wanadoo.fr (SMTP Server) with ESMTP id 6961D1C00701 for ; Thu, 18 Mar 2004 00:49:26 +0100 (CET) Message-ID: <4058E469.3010603@bellard.org> Date: Thu, 18 Mar 2004 00:51:05 +0100 From: Fabrice Bellard MIME-Version: 1.0 Subject: Re: [Qemu-devel] x86-64 port References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Gwenole Beauchesne wrote: > Hi, > >> Nick Snellock wrote: >> >>> Is anyone working on an x86-64 port? >> >> >> Not me :-) An x86-64 host port would be very interesting because >> the 64 bit host MMU could be used to remap the whole emulated 4GB >> address space. > > > Fabrice, remember that I posted AMD64 support bits to the list some > time ago? ;-) This works for user mode applications. As for the soft > mmu, the current code is not 64-bit clean. I had some patches but > they were not enough and are in a dormant state since. So remapping > the whole 4GB address space is probably a faster and simpler fix > indeed. The x86-64 patch is now commited, except for the 'code_gen_buffer' patch (can you explain it ?). Can you also explain what are the problems with the soft MMU ? Fabrice.